Saw-gui



(ModeL) J. STUEMPGES.

SAW GUMMER. v

Patented Aug. 26, 1884 INVENTOR ATTORNEYS.

Warren States Patent Orrrcn.

JOHN STUEMPGES, OF STEVENSONS PIER, ASSIGNOR OF ONEHALF TO ALBERT B. STEVENSON, OF GARDNER, WISCONSIN.

SAW-GUMMER.

SPECIFICATION forming part of Letters Patent No. 30%,145, dated August 26, 188% (Model) To alt whom it may concern:

Be it known that 1, JOHN Srunnrens, of Stevensons Pie-r, in the county of Door and State of Wisconsin, have invented a new and Improved Saw-Grimmer, of which the follow ing is a full, clear, and exact description.

The object of my invention is to provide a new and improved device for gunnning saws or cutting new teeth in saws.

The invention consists in the combination, with a baseblock, of dies held in the same, a plate hold above the baseblock, means for pressing the plate on the base-block, and thus clamping the saw in place, and gages for holding the saw in the proper position, all as will be fuily described hereinafter.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of my improved saw-gummer. Fig. 2 is a longitudinal elevation of the same. Fig. 3 is a plan view of the top plate inverted. Fig. i is a cross-sectional elevation on the line :0 m, Fig. 1.

On each surface of a base-block, A, a strap, 13, is pivoted at each end, which straps are provided at the lower ends with slots a, through which pins 1) pass to hold the straps erect.

Between the upper ends of each pair of straps B a cam-lever, (l, is pivoted.

On the base-block A a steel plate, D, rests. Pins D, projecting from the upper surface of the block A, pass into apertures D in plate D. The ends of the plate D, which pass under the camlcvers, rest on spiral springslh, held in the ends of the block A.

Between the upper surface of the block A and the plate I) a gage, F, is held by a screw, G, having anut, G. A bolt, H, passes through a longitudinal slot, J, in the plate D, and extends into a longitudinal groove, K, in the upper surface of the block A. A nut, H, is screwed on the upper end of the bolt 11 for locking the same in place.

In the plate D and block A two vertical ap- 'ertures, L and M, are formed, of the desired shape of the notches between the saw-teeth.

The teeth in circular saws are cutby a punch fitting closely in the aperture L, and the teeth for crosscut-saws are cut by a punch, S, fitting closely in the aperture M. The apertures L and M are also formed in dies 0 and P, respectively held in apertures in the upper surface of the block A.

If a straight saw is to be gunnncd, it is placed between the base A and plate D and against the gage F. The plate Dis pressed on the blade by turning down the cam-levers G. Then the punch S is forced through the apertures M, and cuts the edges of the teeth orcuts the entire teeth in the edge of the sawblade.

If a circular saw is to be gunnned, it is placed between the base-block A and the top plate, D, and the bolt H is passed through the central aperture of the saw, and the boltis shifted in such a manner that the edge of the saw will be below the aperture L in the plate D, so that the teeth can be formed by a punch forced through the apertures L.

Saws of all kinds can be gunnued very rapidly on my improved guiunier.

The punches can be forced down by means of blows of a hammer or by means of any suitable mechanism.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a SitW-glllllnlCl, the combination, with a base-block, of a clamping-plate elastically supported above it at both ends, means, substantially as described, for depressing the plate, and an adjustable support, H, for the center of a circular saw, substantially as shown and described.

2. In asaw-gunrnier, the combination, with the base-block A, of dies held in the top of the same, the plate D, held above the base-block, the cam-levers C, pivoted in jaws on the end of the block A, and the springs E, held in the block A, and pressing the plate D upward, substantially as herein shown and described.

8. In a SZtW-gllllllllOl, the combination, with the bascblock A, of dies held in the top of the same, the plate D, having a longitudinal slot, J, the bolt H, passing through the slot J into a groove, K, in the top of the block A, the

nut H on the bolt H, and the means for pressstraps B, the plate D, held above the block A, ing the plate D on the base-block A, substzm- I and of dies held in the top of the block A, sub- IO tially as herein shown and described. stantially as herein shown and described. 4. In a sawummer the combination, with v 5 the base-blook A, 0f the straps B, pivoted to JOHN STUEMPGES' the block A, and provided with slots 1), the \Vitnesses:

studs a, projecting through the slots 1), the HENRY VETTER, cam-levers O, pivoted in the upper ends of the AUGUST NAUMANN. 

